how is rachel still calling? >> it's almost certainly a different attorney. >> reporter: he is staff attorney and is responsible for tracking down violators. it's a tough job because technology is making it easy to fake the number you see on caller i.d. it's a time consuming process. >> they've freed up the market, so the telephone company that had it originally probably sold it to another company. so there may be three or four down the line before you find the person. >> reporter: robocall complaints are up, so the federal trade commission is holding a brainstorming meeting on thursday. >> we hope the summit will result in ways for us to find solutions and got more of the robocallers. >> reporter: she said when she blocks the number, she changes one digit and gets through the next time i'm desperate now. >> so what should you do if a robocaller calls you? don't follow the prompts to get off the list. it tells the computer your phone number is legitimate. report it to the website. remember, if you're on the list,